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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: ConfirmWindow.html 842 2015-03-07 18:20:42Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.gui;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.vaadin.server.Sizeable;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import com.vaadin.ui.Button;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import com.vaadin.ui.HorizontalLayout;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import com.vaadin.ui.Label;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import com.vaadin.ui.UI;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import com.vaadin.ui.VerticalLayout;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import com.vaadin.ui.Window;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>/**<a name="line.18"></a>
<span class="sourceLineNo">019</span> * A confirmation window. Content and action on confirmation are supplied by the subclass.<a name="line.19"></a>
<span class="sourceLineNo">020</span> */<a name="line.20"></a>
<span class="sourceLineNo">021</span>@SuppressWarnings("serial")<a name="line.21"></a>
<span class="sourceLineNo">022</span>public abstract class ConfirmWindow extends Window {<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>    protected final Button okButton;<a name="line.24"></a>
<span class="sourceLineNo">025</span>    protected final Button cancelButton;<a name="line.25"></a>
<span class="sourceLineNo">026</span>    protected final UI ui;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>    private boolean populated;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>    protected ConfirmWindow(UI ui, String title) {<a name="line.30"></a>
<span class="sourceLineNo">031</span>        this(ui, title, "OK", "Cancel");<a name="line.31"></a>
<span class="sourceLineNo">032</span>    }<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>    protected ConfirmWindow(UI ui, String title, String okLabel) {<a name="line.34"></a>
<span class="sourceLineNo">035</span>        this(ui, title, okLabel, "Cancel");<a name="line.35"></a>
<span class="sourceLineNo">036</span>    }<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>    protected ConfirmWindow(UI ui, String title, String okLabel, String cancelLabel) {<a name="line.38"></a>
<span class="sourceLineNo">039</span>        super(title);<a name="line.39"></a>
<span class="sourceLineNo">040</span>        this.ui = ui;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>        // Initialize self (defaults)<a name="line.42"></a>
<span class="sourceLineNo">043</span>        this.setWidth(450, Sizeable.Unit.PIXELS);<a name="line.43"></a>
<span class="sourceLineNo">044</span>        this.setHeight(300, Sizeable.Unit.PIXELS);<a name="line.44"></a>
<span class="sourceLineNo">045</span>        this.setClosable(true);<a name="line.45"></a>
<span class="sourceLineNo">046</span>        this.setModal(true);<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span>        // Create buttons<a name="line.48"></a>
<span class="sourceLineNo">049</span>        this.okButton = okLabel != null ? new Button(okLabel, new Button.ClickListener() {<a name="line.49"></a>
<span class="sourceLineNo">050</span>            @Override<a name="line.50"></a>
<span class="sourceLineNo">051</span>            public void buttonClick(Button.ClickEvent event) {<a name="line.51"></a>
<span class="sourceLineNo">052</span>                if (ConfirmWindow.this.execute())<a name="line.52"></a>
<span class="sourceLineNo">053</span>                    ConfirmWindow.this.closeWindow();<a name="line.53"></a>
<span class="sourceLineNo">054</span>            }<a name="line.54"></a>
<span class="sourceLineNo">055</span>        }) : null;<a name="line.55"></a>
<span class="sourceLineNo">056</span>        this.cancelButton = cancelLabel != null ? new Button(cancelLabel, new Button.ClickListener() {<a name="line.56"></a>
<span class="sourceLineNo">057</span>            @Override<a name="line.57"></a>
<span class="sourceLineNo">058</span>            public void buttonClick(Button.ClickEvent event) {<a name="line.58"></a>
<span class="sourceLineNo">059</span>                ConfirmWindow.this.closeWindow();<a name="line.59"></a>
<span class="sourceLineNo">060</span>            }<a name="line.60"></a>
<span class="sourceLineNo">061</span>        }) : null;<a name="line.61"></a>
<span class="sourceLineNo">062</span>    }<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span>    @Override<a name="line.64"></a>
<span class="sourceLineNo">065</span>    public void attach() {<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span>        // Already done?<a name="line.67"></a>
<span class="sourceLineNo">068</span>        if (this.populated)<a name="line.68"></a>
<span class="sourceLineNo">069</span>            return;<a name="line.69"></a>
<span class="sourceLineNo">070</span>        this.populated = true;<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span>        // Get layout<a name="line.72"></a>
<span class="sourceLineNo">073</span>        VerticalLayout layout = new VerticalLayout();<a name="line.73"></a>
<span class="sourceLineNo">074</span>        layout.setMargin(true);<a name="line.74"></a>
<span class="sourceLineNo">075</span>        layout.setSpacing(true);<a name="line.75"></a>
<span class="sourceLineNo">076</span>        layout.setSizeFull();<a name="line.76"></a>
<span class="sourceLineNo">077</span>        this.setContent(layout);<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span>        // Add subclass content<a name="line.79"></a>
<span class="sourceLineNo">080</span>        this.addContent(layout);<a name="line.80"></a>
<span class="sourceLineNo">081</span><a name="line.81"></a>
<span class="sourceLineNo">082</span>        // Add buttons<a name="line.82"></a>
<span class="sourceLineNo">083</span>        Label spacer = new Label();<a name="line.83"></a>
<span class="sourceLineNo">084</span>        layout.addComponent(spacer);<a name="line.84"></a>
<span class="sourceLineNo">085</span>        layout.setExpandRatio(spacer, 1);<a name="line.85"></a>
<span class="sourceLineNo">086</span>        HorizontalLayout buttonLayout = new HorizontalLayout();<a name="line.86"></a>
<span class="sourceLineNo">087</span>        buttonLayout.setSpacing(true);<a name="line.87"></a>
<span class="sourceLineNo">088</span>        if (this.okButton != null)<a name="line.88"></a>
<span class="sourceLineNo">089</span>            buttonLayout.addComponent(this.okButton);<a name="line.89"></a>
<span class="sourceLineNo">090</span>        if (this.cancelButton != null)<a name="line.90"></a>
<span class="sourceLineNo">091</span>            buttonLayout.addComponent(this.cancelButton);<a name="line.91"></a>
<span class="sourceLineNo">092</span>        layout.addComponent(buttonLayout);<a name="line.92"></a>
<span class="sourceLineNo">093</span>    }<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span>    /**<a name="line.95"></a>
<span class="sourceLineNo">096</span>     * Show this window.<a name="line.96"></a>
<span class="sourceLineNo">097</span>     */<a name="line.97"></a>
<span class="sourceLineNo">098</span>    public void show() {<a name="line.98"></a>
<span class="sourceLineNo">099</span>        this.ui.addWindow(this);<a name="line.99"></a>
<span class="sourceLineNo">100</span>    }<a name="line.100"></a>
<span class="sourceLineNo">101</span><a name="line.101"></a>
<span class="sourceLineNo">102</span>    /**<a name="line.102"></a>
<span class="sourceLineNo">103</span>     * Close this window.<a name="line.103"></a>
<span class="sourceLineNo">104</span>     */<a name="line.104"></a>
<span class="sourceLineNo">105</span>    public void closeWindow() {<a name="line.105"></a>
<span class="sourceLineNo">106</span>        this.ui.removeWindow(this);<a name="line.106"></a>
<span class="sourceLineNo">107</span>    }<a name="line.107"></a>
<span class="sourceLineNo">108</span><a name="line.108"></a>
<span class="sourceLineNo">109</span>    /**<a name="line.109"></a>
<span class="sourceLineNo">110</span>     * Add content to the confirmation window's main layout.<a name="line.110"></a>
<span class="sourceLineNo">111</span>     *<a name="line.111"></a>
<span class="sourceLineNo">112</span>     * @param layout new content<a name="line.112"></a>
<span class="sourceLineNo">113</span>     */<a name="line.113"></a>
<span class="sourceLineNo">114</span>    protected abstract void addContent(VerticalLayout layout);<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span>    /**<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * Execute some action after "OK" confirmation.<a name="line.117"></a>
<span class="sourceLineNo">118</span>     * This window will not yet have been removed.<a name="line.118"></a>
<span class="sourceLineNo">119</span>     *<a name="line.119"></a>
<span class="sourceLineNo">120</span>     * @return true if operation was successful and window should be removed<a name="line.120"></a>
<span class="sourceLineNo">121</span>     */<a name="line.121"></a>
<span class="sourceLineNo">122</span>    protected abstract boolean execute();<a name="line.122"></a>
<span class="sourceLineNo">123</span>}<a name="line.123"></a>
<span class="sourceLineNo">124</span><a name="line.124"></a>




























































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